EP3927903A1 - Quick-coupling system having a gripper as locking element - Google Patents

Quick-coupling system having a gripper as locking element

Info

Publication number
EP3927903A1
EP3927903A1 EP20709504.3A EP20709504A EP3927903A1 EP 3927903 A1 EP3927903 A1 EP 3927903A1 EP 20709504 A EP20709504 A EP 20709504A EP 3927903 A1 EP3927903 A1 EP 3927903A1
Authority
EP
European Patent Office
Prior art keywords
coupling part
gripper
boom
locking element
engagement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20709504.3A
Other languages
German (de)
French (fr)
Other versions
EP3927903B1 (en
Inventor
Thomas Jansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3927903A1 publication Critical patent/EP3927903A1/en
Application granted granted Critical
Publication of EP3927903B1 publication Critical patent/EP3927903B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
    • E02F3/404—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors comprising two parts movable relative to each other, e.g. for gripping
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/963—Arrangements on backhoes for alternate use of different tools
    • E02F3/964—Arrangements on backhoes for alternate use of different tools of several tools mounted on one machine

Definitions

  • the invention relates to a quick coupling system for the detachable attachment of attachments to a
  • Hydraulic excavator wherein the quick coupling system can be arranged on a boom of the hydraulic excavator and is hydraulic with a hydraulic system of the excavator
  • boom coupling part has connectable boom coupling part and at least one attachment coupling part which can be arranged on an attachment, the boom coupling part being a hydraulic
  • Attachment coupling part is engageable and wherein the boom coupling part is spaced apart from the
  • the locking element can be hydraulically displaced and in this way engages positively in the form-locking element.
  • the engagement element is usually a bolt which is fixed on opposite bolt ends on a suitable carrier element of the boom coupling part or the attachment coupling part.
  • correspondingly adapted second or first engagement element is usually designed in the shape of a hook or has a hook-shaped cross section, the bolt in a correspondingly adapted recess of the hook-shaped
  • Engaging elements can be arranged and fixed there in a form-fitting manner. Hydraulically displaceable bolts, which can be displaced into corresponding recesses in the form-locking element, are usually used as locking elements.
  • the grippers are arranged on the boom coupling part and can be used as
  • Gripping tools can be used if there is no attachment or no attachment coupling part with attachment with the
  • the grippers are also operated hydraulically, so that for the
  • the object of the invention is to further develop the quick coupling systems known from the prior art in such a way that the simplest possible construction of the quick coupling system is also made possible in connection with a gripper arranged on the boom coupling part.
  • the locking element is designed as a gripper and that the form-fit element protrudes into a gripping area of the gripper when the first and second engagement elements are in engagement with one another as intended, the gripper as a gripping tool, for example, for picking up tree trunks or rails is provided and usable if no attachment coupling part is connected to the boom coupling part.
  • the gripper as a gripping tool, for example, for picking up tree trunks or rails is provided and usable if no attachment coupling part is connected to the boom coupling part.
  • the quick coupling system with gripper can be operated in this way with just one hydraulic connection for the gripper.
  • the gripper can only be used if there is no attachment on the
  • Boom coupling part is attached because the gripper is covered by the attachment when the attachment is mounted.
  • the gripper has no function when the attachment is mounted.
  • the quick coupling system is not restricted, but rather the previously functionless gripper is used as a locking element when the attachment is mounted. In this way, the quick coupling system with gripper can be manufactured and manufactured significantly more easily and thus cost-effectively
  • the gripper has at least two gripping arms which are hydraulically pivoted relative to one another in a gripper bearing, the gripping area being formed between the gripping arm when the gripping arms are in a
  • Swiveling-out position are arranged and wherein the gripping arms bear against the form-fitting element and exert a predetermined gripping force acting in the direction of the gripper bearing on the form-fitting element when the gripping arms are hydraulically displaced into a gripping position.
  • the gripping arms bear against the form-fitting element and exert a predetermined gripping force acting in the direction of the gripper bearing on the form-fitting element when the gripping arms are hydraulically displaced into a gripping position.
  • Form-fitting element rests positively on the gripper arms and the gripper bearing and is pressed in the direction of the gripper bearing.
  • the form-fit element is advantageously rigidly connected to a carrier element of the add-on coupling part, with the add-on coupling part on the carrier element
  • the first engagement element is advantageously rigid on a corresponding one Arranged carrier element of the boom coupling part, wherein the gripper bearing is rigid with the carrier element of the
  • the quick coupling system is advantageously rigidly connected to the boom or is pivotable and / or
  • the first engagement element is advantageously immovable relative to the gripper bearing.
  • Engagement element is advantageously rigidly connected to a carrier element of the boom coupling part on which the gripper bearing is also arranged.
  • the form-locking element and / or the second engagement element can be rigidly fixed on the attachment.
  • the form-fit element and the second engagement element are advantageously not displaceable relative to one another.
  • Form-fit element and the second engagement element can either be on a common carrier element of the
  • Attachment coupling part is set or can directly with be connected to the attachment, for example by a screw or welded connection.
  • the invention provides that the form-fit element of a when the intended arrangement of the
  • the end of the form-fit element is designed to taper in order to support a centering movement of the form-fit element when the gripper is closed.
  • the form-fit element is advantageously designed to taper conically from the form-fit element end, so that the conically-shaped form-fit element end section can simply slide along a gripper arm inner surface when the gripper arms are closed.
  • the object set at the beginning is also achieved by an excavator with a quick coupling system as described above
  • Boom coupling part is arranged on the boom in such a way that the gripper is arranged on a side of the boom facing away from a driver's cab of the excavator.
  • the quick coupling system or the boom coupling part is connected to the boom of the excavator via a tilt rotator. But it is also possible and according to the invention
  • FIG. 1 is a schematically illustrated side view of an arranged on a boom of an excavator
  • the boom coupling part is not connected to the attachment coupling part
  • FIG. 2 shows a side view of the one shown in FIG. 1, shown schematically in detail
  • FIG. 3 shows a front view of the FIG. 2 shown schematically in detail
  • a quick coupling system 1 is shown.
  • the quick coupling system 1 has a mounted on a boom 2 of an excavator 3
  • Boom coupling part 4 is hydraulically connected to a hydraulic system, not shown, of excavator 3.
  • the boom coupling part 4 has a first pin-shaped engaging element 7 which is positively connected to a second engaging element 8 of the
  • Attachment coupling part 6 can be brought into engagement.
  • the second engagement element 8 has two spaced apart hooks 9, which grip around the bolt-shaped first engagement element 7 in a form-fitting manner when the boom coupling part 4 is arranged on the attachment coupling part 6 as intended.
  • the boom coupling part 4 has a hydraulically arranged at a distance from the first engagement element 7
  • the add-on coupling part 6 has a spaced apart from the second engagement element 8
  • the gripper 11 has two gripper arms 15 that are hydraulically pivoted relative to one another in a gripper bearing 14.
  • the gripping area 13 is formed between the gripping arms 15.
  • the first engagement element 7 and the gripper bearing 14 are rigidly arranged on a carrier element 16 of the boom coupling part 4.
  • Form-fit elements 12 are on the attachment 5
  • the form-fit element 12 is designed to taper from a form-fit element end 17 to a

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Earth Drilling (AREA)

Abstract

The invention relates to a quick-coupling system (1) for releasably fastening add-on devices (5) to a hydraulic excavator (3). The quick-coupling system (1) has an arm coupling part (4), which can be arranged on an arm (2) of the hydraulic excavator (3) and can be hydraulically connected to a hydraulic system of the excavator (3), and at least one add-on coupling part (6) which can be arranged on an add-on device (5). The arm coupling part (4) has a hydraulically actuatable locking element (10) which can be brought into form-fitting engagement with a form-fitting element (12) of the add-on coupling part (6). The arm coupling part (4) has a first engagement element (7) which is arranged spaced apart from the locking element (10) and which can be brought into form-fitting engagement with a second engagement element (8) of the add-on coupling part (6), said second engagement element being arranged at a distance from the form-fitting element (12). The locking element (10) is designed as a gripper (11). The form-fitting element (12) projects into a gripping region (13) of the gripper (11) when the first engagement element (7) and the second engagement element (8) are in engagement with one another as intended. The gripper (11) is provided as a gripping tool, for example for picking up tree trunks or railway tracks, and can be used when no add-on coupling part is connected to the arm coupling part (4).

Description

SCHNELLKUPPLUNGSSYSTEM MIT EINEM GREIFER ALS VERRIEGELUNGSELEMENT QUICK COUPLING SYSTEM WITH A GRIPPER AS A LOCKING ELEMENT
Die Erfindung betrifft ein Schnellkupplungssystem zur lösbaren Befestigung von Anbaugeräten an einem The invention relates to a quick coupling system for the detachable attachment of attachments to a
Hydraulikbagger, wobei das Schnellkupplungssystem ein an einem Ausleger des Hydraulikbaggers anordnenbares und hydraulisch mit einem Hydrauliksystem des Baggers Hydraulic excavator, wherein the quick coupling system can be arranged on a boom of the hydraulic excavator and is hydraulic with a hydraulic system of the excavator
verbindbares Auslegerkupplungsteil und mindestens ein an einem Anbaugerät anordnenbares Anbaukupplungsteil aufweist, wobei das Auslegerkupplungsteil ein hydraulisch has connectable boom coupling part and at least one attachment coupling part which can be arranged on an attachment, the boom coupling part being a hydraulic
betätigbares Verriegelungselement aufweist, das having actuatable locking element which
formschlüssig mit einem Formschlusselement des form-fitting with a form-fitting element of the
Anbaukupplungsteils in Eingriff bringbar ist und wobei das Auslegerkupplungsteil ein beabstandet zu dem Attachment coupling part is engageable and wherein the boom coupling part is spaced apart from the
Verriegelungselement angeordnetes erstes Eingriffselement aufweist, das formschlüssig mit einem beabstandet zu dem Formschlusselement angeordneten zweiten Eingriffselement des Anbaukupplungsteils in Eingriff bringbar ist. Derartige Schnellkupplungssysteme sind aus dem Stand der Technik hinreichend bekannt und erlauben einen zügigen Wechsel der unterschiedlichen und für den Hydraulikbagger zur Verfügung stehenden Anbaugeräte wie beispielsweise Tieflöffel, Sieblöffel und Hydraulikhammer. Um mit den aus dem Stand der Technik bekannten Schnellkupplungssystemen ein Anbaugerät mit dem Hydraulikbagger verbinden zu können, wird das an dem Ausleger des jeweiligen Baggers angeordnete Auslegerkupplungsteil zu dem Anbaugerät verlagert, so dass das erste Eingriffselement und das zweite Eingriffselement formschlüssig miteinander in Eingriff stehen. Anschließend werden das Verriegelungselement und das Formschlusselement durch eine entsprechende Verlagerung des Auslegerkupplungsteils derart relativ zueinander Having a locking element arranged first engagement element, which is positively engageable with a spaced apart from the form-locking element second engagement element of the coupling part. Such quick coupling systems are sufficiently known from the prior art and allow a quick change of the different attachments available for the hydraulic excavator, such as backhoe buckets, screening buckets and hydraulic hammers. In order to be able to connect an attachment to the hydraulic excavator with the quick coupling systems known from the prior art, the boom coupling part arranged on the boom of the respective excavator is moved to the attachment so that the first engagement element and the second engagement element are positively engaged with one another. The locking element and the form-locking element are then moved by a corresponding displacement of the Boom coupling part so relative to each other
ausgerichtet, dass das Verriegelungselement hydraulisch verlagert werden kann und auf diese Weise formschlüssig in das Formschlusselement eingreift. aligned that the locking element can be hydraulically displaced and in this way engages positively in the form-locking element.
Bei dem ersten Eingriffselement oder dem zweiten In the first engagement element or the second
Eingriffselement handelt es sich üblicherweise um einen Bolzen, der aneinander gegenüberliegenden Bolzenenden an einem geeigneten Trägerelement des Auslegerkupplungsteils bzw. des Anbaukupplungsteils festgelegt ist. Das The engagement element is usually a bolt which is fixed on opposite bolt ends on a suitable carrier element of the boom coupling part or the attachment coupling part. The
entsprechend angepasste zweite bzw. erste Eingriffselement ist üblicherweise hakenförmig ausgestaltet oder weist einen hakenförmigen Querschnitt auf, wobei der Bolzen in einer entsprechend angepassten Ausnehmung des hakenförmigen correspondingly adapted second or first engagement element is usually designed in the shape of a hook or has a hook-shaped cross section, the bolt in a correspondingly adapted recess of the hook-shaped
Eingriffselements angeordnet und dort formschlüssig festgelegt werden kann. Als Verriegelungselemente werden üblicherweise hydraulisch verlagerbare Bolzen eingesetzt, die in entsprechende Ausnehmungen des Formschlusselements verlagerbar sind. Engaging elements can be arranged and fixed there in a form-fitting manner. Hydraulically displaceable bolts, which can be displaced into corresponding recesses in the form-locking element, are usually used as locking elements.
Zudem sind aus dem Stand der Technik They are also state of the art
Schnellkupplungssysteme bekannt bei denen Greifer zum Quick coupling systems are known where grippers for
Beispiel zur Aufnahme von Baumstämmen oder Gleisen Example for picking up tree trunks or rails
dauerhaft vorgesehen sind. Die Greifer sind dabei an dem Auslegerkupplungsteil angeordnet und können als are provided permanently. The grippers are arranged on the boom coupling part and can be used as
Greifwerkzeug verwendet werden, wenn kein Anbaugerät bzw. kein Anbaukupplungsteil mit Anbaugerät mit dem Gripping tools can be used if there is no attachment or no attachment coupling part with attachment with the
Auslegerkupplungsteil verbunden ist. Die Greifer werden dabei ebenfalls hydraulisch betätigt, so dass für den Boom coupling part is connected. The grippers are also operated hydraulically, so that for the
Betrieb der aus dem Stand der Technik bekannten Operation of the known from the prior art
Schnellkupplungssysteme mit Greifer zwei getrennte Hydraulikversorgungen des Schnellkupplungssystems Quick coupling systems with two separate grippers Hydraulic supplies of the quick coupling system
erforderlich sind. required are.
Als Aufgabe der Erfindung wird es angesehen die aus dem Stand der Technik bekannten Schnellkupplungssysteme derart weiter zu entwickeln, dass ein möglichst einfacher Aufbau des Schnellkupplungssystems auch in Verbindung mit einem an dem Auslegerkupplungsteil angeordneten Greifer ermöglicht wird . The object of the invention is to further develop the quick coupling systems known from the prior art in such a way that the simplest possible construction of the quick coupling system is also made possible in connection with a gripper arranged on the boom coupling part.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Verriegelungselement als Greifer ausgestaltet ist und dass das Formschlusselement in einen Greifbereich des Greifers hineinragt, wenn das erste und das zweite Eingriffselement bestimmungsgemäß miteinander in Eingriff stehen, wobei der Greifer als Greifwerkzeug beispielsweise zur Aufnahme von Baumstämmen oder Gleisen vorgesehen und verwendbar ist, wenn kein Anbaukupplungsteil mit dem Auslegerkupplungsteil verbunden ist. Auf diese Weise kann auf die Verwendung eines zusätzlichen und beispielsweise bolzenförmig This object is achieved according to the invention in that the locking element is designed as a gripper and that the form-fit element protrudes into a gripping area of the gripper when the first and second engagement elements are in engagement with one another as intended, the gripper as a gripping tool, for example, for picking up tree trunks or rails is provided and usable if no attachment coupling part is connected to the boom coupling part. In this way, the use of an additional and, for example, bolt-shaped
ausgestalteten Verriegelungselements verzichtet werden. Zudem kann das Schnellkupplungssystem mit Greifer auf diese Weise mit nur einem hydraulischen Anschluss für den Greifer betrieben werden. configured locking element can be dispensed with. In addition, the quick coupling system with gripper can be operated in this way with just one hydraulic connection for the gripper.
Bei dem aus dem Stand der Technik bekannten In the case of the one known from the prior art
Schnellkupplungssystem mit Greifer kann der Greifer nur dann verwendet werden, wenn kein Anbaugerät an dem Quick coupling system with gripper, the gripper can only be used if there is no attachment on the
Auslegerkupplungsteil befestigt ist, da der Greifer bei montiertem Anbaugerät von dem Anbaugerät verdeckt wird. Bei montiertem Anbaugerät ist der Greifer daher ohne Funktion. Durch die erfindungsgemäße Verwendung des Greifers als Verriegelungselement wird die Funktion des Boom coupling part is attached because the gripper is covered by the attachment when the attachment is mounted. The gripper has no function when the attachment is mounted. The inventive use of the gripper as a locking element, the function of the
Schnellkupplungssystems also nicht eingeschränkt, sondern vielmehr der bei montiertem Anbaugerät zuvor funktionslose Greifer als Verriegelungselement verwendet. Auf diese Weise kann das Schnellkupplungssystem mit Greifer deutlich einfacher und damit kostengünstig herstellbar und The quick coupling system is not restricted, but rather the previously functionless gripper is used as a locking element when the attachment is mounted. In this way, the quick coupling system with gripper can be manufactured and manufactured significantly more easily and thus cost-effectively
wartungsärmer ausgestaltet werden. be designed to be less maintenance.
Vorteilhafterweise ist erfindungsgemäß vorgesehen, dass der Greifer mindestens zwei relativ zueinander hydraulisch schwenkbar in einem Greiferlager gelagerte Greifarme aufweist, wobei der Greifbereich zwischen den Greifarm ausgebildet ist, wenn die Greifarme in einer According to the invention, it is advantageously provided that the gripper has at least two gripping arms which are hydraulically pivoted relative to one another in a gripper bearing, the gripping area being formed between the gripping arm when the gripping arms are in a
Ausschwenkposition angeordnet sind und wobei die Greifarme an dem Formschlusselement anliegen und eine vorgegebene und in Richtung des Greiferlagers wirkende Greifkraft auf das Formschlusselement ausüben, wenn die Greifarme hydraulisch in eine Greifposition verlagert sind. Die Greifarme Swiveling-out position are arranged and wherein the gripping arms bear against the form-fitting element and exert a predetermined gripping force acting in the direction of the gripper bearing on the form-fitting element when the gripping arms are hydraulically displaced into a gripping position. The gripping arms
umschließen das Formschlusselement in dem Greifbereich und verlagern das Formschlusselement beim Schließen der enclose the form-fit element in the gripping area and move the form-fit element when the
Greifarme in Richtung des Greiferlagers, so dass das Gripper arms in the direction of the gripper bearing so that the
Formschlusselement formschlüssig an den Greifarmen und dem Greiferlager anliegt und in Richtung des Greiferlagers gedrückt wird. Form-fitting element rests positively on the gripper arms and the gripper bearing and is pressed in the direction of the gripper bearing.
Das Formschlusselement ist vorteilhafterweise starr mit einem Trägerelement des Anbaukupplungsteils verbunden, wobei an dem Trägerelement des Anbaukupplungsteils The form-fit element is advantageously rigidly connected to a carrier element of the add-on coupling part, with the add-on coupling part on the carrier element
vorteilhafterweise ebenfalls starr das zweite advantageously also rigidly the second
Eingriffselement angeordnet ist. Das erste Eingriffselement ist vorteilhafterweise starr an einem entsprechenden Trägerelement des Auslegerkupplungsteils angeordnet, wobei auch das Greiferlager starr mit dem Trägerelement des Engagement element is arranged. The first engagement element is advantageously rigid on a corresponding one Arranged carrier element of the boom coupling part, wherein the gripper bearing is rigid with the carrier element of the
Auslegerkupplungsteils verbunden sein kann. Can be connected boom coupling part.
Vorteilhafterweise ist das Schnellkupplungssystem starr mit dem Ausleger verbunden oder wird schwenk- und/oder The quick coupling system is advantageously rigidly connected to the boom or is pivotable and / or
rotierbar über einen sogenannten Tilt-Rotator an dem rotatable via a so-called tilt rotator on the
Ausleger festgelegt. Boom set.
Das erste Eingriffselement ist vorteilhafterweise relativ zu dem Greiferlager unverlagerbar . Das erste The first engagement element is advantageously immovable relative to the gripper bearing. The first
Eingriffselement ist vorteilhafterweise starr mit einem Trägerelement des Auslegerkupplungsteils verbunden, an dem auch das Greiferlager angeordnet ist. Engagement element is advantageously rigidly connected to a carrier element of the boom coupling part on which the gripper bearing is also arranged.
Bei einer besonders vorteilhafter Ausgestaltung des In a particularly advantageous embodiment of the
erfindungsgemäßen Schnellkupplungssystems ist vorgesehen, dass ausschließlich der Greifer hydraulisch betätigbar ist. Auf diese Weise kann die Anzahl der beweglichen und According to the quick coupling system according to the invention, it is provided that only the gripper can be actuated hydraulically. In this way the number of movable and
hydraulisch betätigbaren Bestandteile des hydraulically operated components of the
Schnellkupplungssystems mit Greifer auf ein Minimum Quick coupling system with gripper to a minimum
reduziert werden. be reduced.
Vorteilhafterweise ist erfindungsgemäß vorgesehen, dass das Formschlusselement und/oder das zweite Eingriffselement starr an dem Anbaugerät festlegbar sind. Vorteilhafterweise sind das Formschlusselement und das zweite Eingriffselement relativ zueinander nicht verlagerbar. Das According to the invention, it is advantageously provided that the form-locking element and / or the second engagement element can be rigidly fixed on the attachment. The form-fit element and the second engagement element are advantageously not displaceable relative to one another. The
Formschlusselement und das zweite Eingriffselement können entweder an einem gemeinsamen Trägerelement des Form-fit element and the second engagement element can either be on a common carrier element of the
Anbaukupplungsteils angeordnet sein, welches an dem Be arranged attachment coupling part, which on the
Anbaukupplungsteil festgelegt ist oder können direkt mit dem Anbaugerät beispielsweise durch eine Schraub- oder Schweißverbindung verbunden werden. Attachment coupling part is set or can directly with be connected to the attachment, for example by a screw or welded connection.
Um das Schließen der Greifarme beim Greifen des To allow the gripper arms to close when gripping the
Formschlusselements zu vereinfachen und ein Verkanten des Formschlusselements in dem Greifbereich zu vermeiden, ist erfindungsgemäß vorgesehen, dass das Formschlusselement von einem bei bestimmungsgemäßer Anordnung des To simplify the form-fit element and to avoid tilting of the form-fit element in the gripping area, the invention provides that the form-fit element of a when the intended arrangement of the
Anbaukupplungsteils an dem Auslegerkupplungsteil in Attachment coupling part on the boom coupling part in
Richtung des Greifers ausgerichteten Direction of the gripper aligned
Formschlusselementendes her sich verjüngend ausgestaltet ist, um eine Zentrierbewegung des Formschlusselements beim Schließen des Greifers zu unterstützen. Vorteilhafterweise ist das Formschlusselement von dem Formschlusselementende her konisch verjüngend ausgestaltet, so dass der konisch geformte Formschlusselementendabschnitt beim Schließen der Greifarme einfach entlang einer Greifarminnenfläche gleiten kann . The end of the form-fit element is designed to taper in order to support a centering movement of the form-fit element when the gripper is closed. The form-fit element is advantageously designed to taper conically from the form-fit element end, so that the conically-shaped form-fit element end section can simply slide along a gripper arm inner surface when the gripper arms are closed.
Erfindungsgemäß wird die eingangs gestellte Aufgabe auch durch einen Bagger mit einem wie voranstehend beschriebenen Schnellkupplungssystem gelöst, wobei das According to the invention, the object set at the beginning is also achieved by an excavator with a quick coupling system as described above
Auslegerkupplungsteil derart an dem Ausleger angeordnet ist, dass der Greifer auf einer einer Fahrerkabine des Baggers abgewandten Seite des Auslegers angeordnet ist. Boom coupling part is arranged on the boom in such a way that the gripper is arranged on a side of the boom facing away from a driver's cab of the excavator.
Vorteilhafterweise ist erfindungsgemäß vorgesehen, dass das Schnellkupplungssystem bzw. das Auslegerkupplungsteil über einen Tilt-Rotator mit dem Ausleger des Baggers verbunden ist. Es ist aber auch möglich und erfindungsgemäß According to the invention it is advantageously provided that the quick coupling system or the boom coupling part is connected to the boom of the excavator via a tilt rotator. But it is also possible and according to the invention
vorgesehen, dass das Auslegerkupplungsteil starr an dem Ausleger befestigt ist. Weitere vorteilhafte Ausgestaltungen des erfindungsgemäßen Schnellkupplungssystems werden anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. provided that the boom coupling part is rigidly attached to the boom. Further advantageous configurations of the quick coupling system according to the invention are explained in more detail with reference to the exemplary embodiment shown in the drawing.
Es zeigt: It shows:
Figur 1 eine schematisch dargestellte Seitenansicht eines an einem Ausleger eines Baggers angeordneten FIG. 1 is a schematically illustrated side view of an arranged on a boom of an excavator
Auslegerkupplungsteils sowie eines an einem Anbaugerät angeordneten Anbaukupplungsteils , wobei das Boom coupling part as well as an attachment coupling part arranged on an attachment, the
Auslegerkupplungsteil mit dem Anbaukupplungsteil nicht verbunden ist, The boom coupling part is not connected to the attachment coupling part,
Figur 2 eine schematisch ausschnittsweise dargestellte Seitenansicht des in Figur 1 gezeigten FIG. 2 shows a side view of the one shown in FIG. 1, shown schematically in detail
Schnellkupplungssystems, wobei das Auslegerkupplungsteil und das Anbaukupplungsteil bestimmungsgemäß miteinander in Eingriff gebracht sind und Quick coupling system, the boom coupling part and the attachment coupling part being brought into engagement with one another as intended and
Figur 3 eine schematisch ausschnittsweise dargestellte Vorderansicht des Figur 2 gezeigten FIG. 3 shows a front view of the FIG. 2 shown schematically in detail
Schnellkupplungssystems . Quick coupling system.
In den Figuren 1 bis 3 wird ein Schnellkupplungssystem 1 dargestellt. Das Schnellkupplungssystem 1 weist ein an einem Ausleger 2 eines Baggers 3 angeordnetes In Figures 1 to 3, a quick coupling system 1 is shown. The quick coupling system 1 has a mounted on a boom 2 of an excavator 3
Auslegerkupplungsteil 4 und ein an einem Anbaugerät 5 angeordnetes Anbaukupplungsteil 6 auf. Das Boom coupling part 4 and an attachment coupling part 6 arranged on an attachment 5. The
Auslegerkupplungsteil 4 ist hydraulisch mit einem nicht dargestellten Hydrauliksystem des Baggers 3 verbunden. Das Auslegerkupplungsteil 4 weist ein erstes bolzenförmig ausgestaltetes Eingriffselement 7 auf, das formschlüssig mit einem zweiten Eingriffselement 8 des Boom coupling part 4 is hydraulically connected to a hydraulic system, not shown, of excavator 3. The boom coupling part 4 has a first pin-shaped engaging element 7 which is positively connected to a second engaging element 8 of the
Anbaukupplungsteils 6 in Eingriff bringbar ist. Das zweite Eingriffselement 8 weist zwei beabstandet zueinander angeordnete Haken 9 auf, die das bolzenförmig ausgestaltete erste Eingriffselement 7 formschlüssig umgreifen, wenn das Auslegerkupplungsteil 4 an dem Anbaukupplungsteil 6 bestimmungsgemäß angeordnet ist. Attachment coupling part 6 can be brought into engagement. The second engagement element 8 has two spaced apart hooks 9, which grip around the bolt-shaped first engagement element 7 in a form-fitting manner when the boom coupling part 4 is arranged on the attachment coupling part 6 as intended.
Das Auslegerkupplungsteil 4 weist ein beabstandet zu dem ersten Eingriffselement 7 angeordnetes hydraulisch The boom coupling part 4 has a hydraulically arranged at a distance from the first engagement element 7
betätigbares Verriegelungselement 10 auf, welches als actuatable locking element 10, which as
Greifer 11 ausgebildet ist. Das Anbaukupplungsteil 6 weist ein beabstandet zu dem zweiten Eingriffselement 8 Gripper 11 is formed. The add-on coupling part 6 has a spaced apart from the second engagement element 8
angeordnetes Formschlusselement 12 auf, das wie in den Figuren 2 und 3 dargestellt in einen Greifbereich 13 des Greifers 11 hineinragt, wenn das erste 7 und das zweite Eingriffselement 8 bestimmungsgemäß miteinander in Eingriff stehen . arranged form-locking element 12, which as shown in Figures 2 and 3 protrudes into a gripping area 13 of the gripper 11 when the first 7 and the second engagement element 8 are intended to be in engagement with one another.
Der Greifer 11 weist zwei relativ zueinander hydraulisch schwenkbar in einem Greiferlager 14 gelagerte Greifarme 15 auf. Der Greifbereich 13 ist zwischen den Greifarmen 15 ausgebildet . The gripper 11 has two gripper arms 15 that are hydraulically pivoted relative to one another in a gripper bearing 14. The gripping area 13 is formed between the gripping arms 15.
Das erste Eingriffselement 7 und das Greiferlager 14 sind starr an einem Trägerelement 16 des Auslegerkupplungsteils 4 angeordnet. Das zweite Eingriffselement 8 und das The first engagement element 7 and the gripper bearing 14 are rigidly arranged on a carrier element 16 of the boom coupling part 4. The second engagement element 8 and the
Formschlusselement 12 sind an dem Anbaugerät 5 Form-fit elements 12 are on the attachment 5
angeschweißt . Das Formschlusselement 12 von einem Formschlusselementende 17 her sich verjüngend ausgestaltet, um eine welded on. The form-fit element 12 is designed to taper from a form-fit element end 17 to a
Zentrierbewegung des Formschlusselements 12 beim Schließen des Greifers 11 zu unterstützen. To support the centering movement of the form-fit element 12 when the gripper 11 is closed.

Claims

P A T E N T A N S P R Ü C H E P A T E N T A N S P R Ü C H E
1. Schnellkupplungssystem (1) zur lösbaren Befestigung von1. Quick coupling system (1) for the detachable fastening of
Anbaugeräten (5) an einem Hydraulikbagger (3), wobei das Schnellkupplungssystem (1) ein an einem Ausleger (2) des Hydraulikbaggers (3) anordnenbares und hydraulisch mit einem Hydrauliksystem des Baggers (3) verbindbares Attachments (5) to a hydraulic excavator (3), wherein the quick coupling system (1) can be arranged on a boom (2) of the hydraulic excavator (3) and hydraulically connected to a hydraulic system of the excavator (3)
Auslegerkupplungsteil (4) und mindestens ein an einem Boom coupling part (4) and at least one on one
Anbaugerät (5) anordnenbares Anbaukupplungsteil (6) aufweist, wobei das Auslegerkupplungsteil (4) ein Has attachment (5) arrangable attachment coupling part (6), wherein the boom coupling part (4)
hydraulisch betätigbares Verriegelungselement (10) hydraulically actuated locking element (10)
aufweist, das formschlüssig mit einem Formschlusselement (12) des Anbaukupplungsteils (6) in Eingriff bringbar ist und wobei das Auslegerkupplungsteil (4) ein beabstandet zu dem Verriegelungselement (10) angeordnetes erstes which is positively engageable with a form-locking element (12) of the add-on coupling part (6) and wherein the boom coupling part (4) has a first spaced apart from the locking element (10)
Eingriffselement (7) aufweist, das formschlüssig mit einem beabstandet zu dem Formschlusselement (12) angeordneten zweiten Eingriffselement (8) des Anbaukupplungsteils (6) in Eingriff bringbar ist, dadurch gekennzeichnet, dass das Verriegelungselement (10) als Greifer (11) ausgestaltet ist und dass das Formschlusselement (12) in einen Greifbereich (13) des Greifers (11) hineinragt, wenn das erste (7) und das zweite Eingriffselement (8) bestimmungsgemäß Has engagement element (7) which can be positively engaged with a second engagement element (8) of the add-on coupling part (6) arranged at a distance from the form-fit element (12), characterized in that the locking element (10) is designed as a gripper (11) and that the form-fit element (12) protrudes into a gripping area (13) of the gripper (11) when the first (7) and the second engagement element (8) are intended
miteinander in Eingriff stehen, wobei der Greifer als Greifwerkzeug beispielsweise zur Aufnahme von Baumstämmen oder Gleisen vorgesehen und verwendbar ist, wenn kein are in engagement with one another, the gripper being provided and usable as a gripping tool, for example, for picking up tree trunks or rails, if none
Anbaukupplungsteil mit dem Auslegerkupplungsteil verbunden ist. 2. Schnellkupplungssystem (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Greifer (11) mindestens zwei relativ zueinander hydraulisch schwenkbar in einem Attachment coupling part is connected to the boom coupling part. 2. Quick coupling system (1) according to claim 1, characterized in that the gripper (11) is at least two hydraulically pivotable relative to one another in one
Greiferlager (14) gelagerte Greifarme (15) aufweist, wobei der Greifbereich (14) zwischen den Greifarmen (15) Gripper bearing (14) has mounted gripping arms (15), wherein the gripping area (14) between the gripping arms (15)
ausgebildet ist, wenn die Greifarme (15) in einer is formed when the gripping arms (15) in a
Ausschwenkposition angeordnet sind und wobei die GreifarmeSwiveling are arranged and wherein the gripping arms
(15) an dem Formschlusselement (12) anliegen und eine vorgegebene und in Richtung des Greiferlagers (14) wirkende Greifkraft auf das Formschlusselement (12) ausüben, wenn die Greifarme (15) hydraulisch in eine Greifposition verlagert sind. (15) rest on the form-fit element (12) and exert a predetermined gripping force acting in the direction of the gripper bearing (14) on the form-fit element (12) when the gripping arms (15) are hydraulically displaced into a gripping position.
3. Schnellkupplungssystem (1) gemäß Anspruch 2, dadurch gekennzeichnet, dass das erste Eingriffselement (7) relativ zu dem Greiferlager (14) unverlagerbar ist. 3. Quick coupling system (1) according to claim 2, characterized in that the first engagement element (7) is immovable relative to the gripper bearing (14).
4. Schnellkupplungssystem (1) gemäß einem der 4. Quick coupling system (1) according to one of the
voranstehenden Ansprüche, dadurch gekennzeichnet, dass ausschließlich der Greifer (11) hydraulisch betätigbar ist. The preceding claims, characterized in that only the gripper (11) can be operated hydraulically.
5. Schnellkupplungssystem (1) gemäß einem der 5. Quick coupling system (1) according to one of the
voranstehenden Ansprüche, dadurch gekennzeichnet, dass das Formschlusselement (12) und/oder das zweite The preceding claims, characterized in that the form-locking element (12) and / or the second
Eingriffselement (8) starr an dem Anbaugerät (5) festlegbar sind . Engagement element (8) can be rigidly fixed on the attachment (5).
6. Schnellkupplungssystem (1) gemäß einem der 6. Quick coupling system (1) according to one of the
voranstehenden Ansprüche, dadurch gekennzeichnet, dass das Formschlusselement (12) von einem bei bestimmungsgemäßer Anordnung des Anbaukupplungsteils (6) an dem The preceding claims, characterized in that the form-locking element (12) from one with the intended arrangement of the attachment coupling part (6) on the
Auslegerkupplungsteil (4) in Richtung des Greifers (11) ausgerichteten Formschlusselementendes (17) her sich verjüngend ausgestaltet ist, um eine Zentrierbewegung des Formschlusselements (12) beim Schließen des Greifers (11) zu unterstützen. Boom coupling part (4) in the direction of the gripper (11) aligned form-locking element end (17) is designed to taper in order to support a centering movement of the form-locking element (12) when closing the gripper (11).
7. Bagger (3) mit einem Schnellkupplungssystem (1) gemäß einem der voranstehenden Ansprüche, wobei das 7. excavator (3) with a quick coupling system (1) according to one of the preceding claims, wherein the
Auslegerkupplungsteil (4) derart an dem Ausleger (2) angeordnet ist, dass der Greifer (11) auf einer einer Fahrerkabine des Baggers (3) abgewandten Seite des Boom coupling part (4) is arranged on the boom (2) in such a way that the gripper (11) is located on a side of the excavator (3) facing away from a driver's cab of the excavator (3)
Auslegers (2) angeordnet ist. Boom (2) is arranged.
EP20709504.3A 2019-02-20 2020-02-20 Quick-coupling system having a gripper as locking element Active EP3927903B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019104321.2A DE102019104321A1 (en) 2019-02-20 2019-02-20 Quick coupling system
PCT/EP2020/054507 WO2020169746A1 (en) 2019-02-20 2020-02-20 Quick-coupling system having a gripper as locking element

Publications (2)

Publication Number Publication Date
EP3927903A1 true EP3927903A1 (en) 2021-12-29
EP3927903B1 EP3927903B1 (en) 2022-11-30

Family

ID=69770862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20709504.3A Active EP3927903B1 (en) 2019-02-20 2020-02-20 Quick-coupling system having a gripper as locking element

Country Status (3)

Country Link
EP (1) EP3927903B1 (en)
DE (1) DE102019104321A1 (en)
WO (1) WO2020169746A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9101150A (en) * 1991-07-02 1993-02-01 Verachtert Bv COUPLER.
JP2693336B2 (en) * 1992-02-26 1997-12-24 株式会社クボタ Mounting device for tractor and work implement
US5472308A (en) * 1994-04-26 1995-12-05 Somero; Nick J. Grapple mount
JP2006037379A (en) * 2004-07-23 2006-02-09 Soushiyu Aikawa Adaptor for attachment connection and disconnection
GB2471720A (en) * 2009-07-10 2011-01-12 Patrick Roache Excavator quick hitch mechanism
KR101394863B1 (en) * 2013-03-25 2014-05-13 이소정 A grab link device for fastening the bucket
KR101353244B1 (en) * 2013-08-16 2014-01-20 김수철 An excavator having removable forefinger
US9611616B2 (en) * 2014-12-24 2017-04-04 Shun Maruyama Bucket attaching structure of construction machine and construction machine

Also Published As

Publication number Publication date
DE102019104321A1 (en) 2020-08-20
EP3927903B1 (en) 2022-11-30
WO2020169746A1 (en) 2020-08-27

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